US PRESIDENT Donald Trump was accused of being a threat to global security yesterday after he announced Washington’s withdrawal from a decades-old nuclear treaty with Russia.

The belligerent billionaire claimed that Moscow had violated the terms of the Intermediate-Range Nuclear Forces (INF) Treaty signed by then US president Ronald Reagan and his Soviet counterpart Mikhail Gorbachov in 1987.

“We’re not going to let them violate a nuclear agreement and go out and do weapons [while] we’re not allowed to,” Mr Trump whined.

But Mr Gorbachov, now 87, warned that the US action would make the goal of global nuclear disarmament harder to achieve.

And Moscow warned that it would take necessary measures, raising fears of a dangerous new arms race between the two countries, echoing their cold war rivalry.

Kremlin spokesman Dmitry Peskov said: “We need to hear the American side’s explanation on this issue. Scrapping the treaty forces Russia to take steps for its own security.”

The agreement banned both conventional and nuclear ground-launched medium-range missiles and represented a thawing of relations between the two nations.

US national security adviser John Bolton, a leading advocate of scrapping the treaty, flew to Moscow for talks yesterday.